This seven-sided Romanesque chapel is regarded as the oldest building in Rovinj.

A monument to one of Croatia's famous freedom fighters.

This 135-year-old weather station studied the effects of the climate on human health.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

Where the lovelorn find a home for their sentimental keepsakes.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Try not to get slimed in Tribeca.

Elevated freight railway turned wildly successful urban park.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A vibrant, 100-foot-tall mural dedicated to Evelyn Nesbit, the tragic icon of the Gilded Age.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Thousands of well-dressed mummies below a monastery.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

A hidden plaque is the only reminder of the lost palace where two storied English kings were born.

The lantern carried by the infamous Guy Fawkes when he was arrested while attempting to blow the houses of Parliament and the King of England to smithereens